Is Sildenafil effective? Karina January 05, 2019 11:30 Updated Follow According to the research 85% of men get the result they want from Sildenafil – a strong erection. Excellent news. Related articles What are the side effects of Sildenafil? What are the ingredients in Sildenafil? Who can take Sildenafil? Viagra Connect vs Sildenafil What is Tadalafil? Comments 0 comments Article is closed for comments.